Home / 11,179.50-15,427.79-6,143.82

Finding the Fourth Proportional to 11,179.50, 15,427.79 and 6,143.82

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Solution

The fourth proportional to 11,179.50, 15,427.79 and 6,143.82 is: 8,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.50 : 15,427.79 = 6,143.82 : x
  2. Step 2: Convert to fraction form
    11,179.50/15,427.79 = 6,143.82/x
  3. Step 3: Cross multiply
    11,179.50x = 15,427.79 × 6,143.82
  4. Step 4: Simplify right side
    11,179.50x = 94,785,564.76
  5. Step 5: Solve for x
    x = 94,785,564.76/11,179.50
  6. Step 6: Final answer
    x = 8,478.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.